PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2666Nut,plain,hexagon

Telemechanics Inc · NSN 5310-00-297-8942 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-297-8942 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-297-8942. Primary manufacturer part number: 2666.
Features
  • Nut,plain,hexagon — FSC 5310
  • Width Across Flats: 0.250 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Thread Class: 2B
  • Thread Series: UNS
  • Thread Quantity Per Inch: 40
  • Nominal Thread Size: 0.190 INCHES IN
  • Bearing Surface Type: CHAMFERED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-297-8942, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-297-8942
Primary Part Number2666
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Width Across Flats0.250 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Class2B
Thread SeriesUNS
Thread Quantity Per Inch40
Nominal Thread Size0.190 INCHES IN
Bearing Surface TypeCHAMFERED
Nut Height0.125 INCHES NOMINAL IN
Nut StyleHEXAGON
Surface TreatmentOXIDE OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5975-00-296-0762J3356 INTERCHANGEABLE
Rod,ground
Joslyn Corp
2530-00-430-9527 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
5325-00-489-30831068D100ITEMS INTERCHANGEABLE
Grommet,nonmetallic
S F Appliance Ltd
5330-00-559-2490282-7804-805031PC2666 INTERCHANGEABLE
Gasket
Naval Ship Systems Command
5310-00-998-32352666 INTERCHANGEABLE
Washer,shouldered
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5310-01-009-69782666 INTERCHANGEABLE
Nut,plain,hexagon
Tyco Fire Products Lp
2940-01-123-268142666 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
5355-01-292-46842666 INTERCHANGEABLE
Dial,control
Bi Technologies Corporation Div Bi Technologies Corp.
4530-01-368-76212666 INTERCHANGEABLE
Burner,oil,pressure Atomizing
Rosco Mfg Co
Cross-Reference Index
Part NumberManufacturer
2666 At and T Corp (USA)
2666 PRIMARY Telemechanics Inc (USA)
Related Parts
5975-00-296-0762INTERCHANGEABLE
ROD,GROUND
J3356
2530-00-430-9527INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
5325-00-489-3083INTERCHANGEABLE
GROMMET,NONMETALLIC
1068D100ITEMS
5330-00-559-2490INTERCHANGEABLE
GASKET
282-7804-805031PC2666
5310-00-998-3235INTERCHANGEABLE
WASHER,SHOULDERED
2666
5310-01-009-6978INTERCHANGEABLE
NUT,PLAIN,HEXAGON
2666
2940-01-123-2681INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42666
5355-01-292-4684INTERCHANGEABLE
DIAL,CONTROL
2666
4530-01-368-7621INTERCHANGEABLE
BURNER,OIL,PRESSURE ATOMIZING
2666

Frequently Asked Questions

What is NSN 5310-00-297-8942?

NSN 5310-00-297-8942 is a Nut,plain,hexagon, manufactured by Telemechanics Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-297-8942?

NSN 5310-00-297-8942 has 2 cross-referenced part numbers: 2666 (At and T Corp), 2666 (Telemechanics Inc).

What NSN replaces 5310-00-297-8942?

There are 9 known substitutes for 5310-00-297-8942: 5975-00-296-0762, 2530-00-430-9527, 5325-00-489-3083 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2666?

Key specifications for 2666: Width Across Flats: 0.250 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Thread Class: 2B; Thread Series: UNS. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-297-8942 still in active supply?

NSN 5310-00-297-8942 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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